/*
 * Copyright 2017-2018 the original author(https://github.com/wj596)
 * 
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * </p>
 */
package com.ld.security.auth.common.sys.login;

import com.ld.security.auth.common.sys.po.LoginPo;


public interface LoginService {
    /**
     * 登陆
     *
     * @param
     * @return
     */
    String login(LoginPo po);

    /**
     * 默认登陆
     * @return
     */
    String login();
    /**
     * 退出
     *
     * @param
     */
    void logout();


    /**
     * 是否可用
     * @return
     */
    default boolean isUse() {
        return true;
    }
}